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Australian organisations encouraged to urgently adopt an enhanced cyber security posture   Alert

Mar 28, 2022 - Australian organisations are encouraged to urgently adopt an enhanced cyber security posture. Organisations should act now and follow ACSC’s advice to improve their cyber security resilience in light of the heightened threat environment.

BADBAZAAR and MOONSHINE: Technical analysis and mitigations   Advisory

Apr 9, 2025 - This guidance has been jointly produced by government agencies from the UK, Australia, Canada, Germany, New Zealand, and the US and is supported by members of the NCSC Cyber League. Its provides new and collated threat intelligence on two spywares known as MOONSHINE and BADBAZAAR with guidance for how App store operators, developers and social media companies can keep their users safe.

#StopRansomware: Play ransomware   Advisory

Dec 19, 2023 - This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.

Update your small business cyber security   News

Jun 12, 2024 - Resources to help protect small businesses from cyber threats.

BADBAZAAR and MOONSHINE: Spyware targeting Uyghur, Taiwanese and Tibetan groups and civil society actors   Advisory

Apr 9, 2025 - This advisory is jointly produced by government agencies from the UK, Australia, Canada, Germany, New Zealand, and the US and is supported by members of the NCSC’s Cyber League. Its purpose is to raise awareness about the growing threat that malicious cyber actors pose to individuals connected to topics including Taiwan, Tibet, Xinjiang Uyghur Autonomous Region, democracy movements and the Falun Gong.

Choosing secure and verifiable technologies: Executive guidance   Publication

Dec 5, 2024 - This guide supports senior leaders to enable their organisations to understand their threat environment and make better-informed assessments and decisions to procure secure technologies.

Foundations for modern defensible architecture   Publication

Feb 10, 2025 - The Foundations represent the first step to help organisations adopt a ‘modern defensible architecture’ approach, which will enable them to evolve alongside the threat landscape.

Australia joins US and UK to warn of 2021 Ransomware trends   News

Feb 10, 2022 - Ransomware continues to be a global threat, and cybercriminals using ransomware pose a significant risk to Australian organisations and households.

Strategies to mitigate cybersecurity incidents   Publication

Feb 1, 2017 - The Australian Signals Directorate (ASD) has developed prioritised mitigation strategies to help organisations mitigate cybersecurity incidents caused by various cyberthreats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.

Quiz library   Guidance

Test your knowledge about cybersecurity practices and threats through our quizzes.

The silent heist: cybercriminals use information stealer malware to compromise corporate networks   Advisory

Sep 2, 2024 - Information stealer malware steals user login credentials and system information that cyber threat actors exploit, predominantly for monetary gain. Information stealers have been observed in attacks against multiple organisations and sectors worldwide, including Australia. This advisory provides readers with cyber security guidance on information stealers, including threat activity and mitigation advice for individuals and organisations.

APT exploitation of Fortinet Vulnerabilities   Alert

Apr 3, 2021 - Advanced Persistent Threat (APT) actors targeting historic Fortinet vulnerabilities.

Guidelines for cybersecurity incidents   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on cybersecurity incidents.

#StopRansomware: LockBit 3.0 Ransomware Affiliates Exploit CVE 2023-4966 Citrix Bleed Vulnerability   Advisory

Nov 29, 2023 - This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.

New Secure by Demand guidance available for operational technology owners and operators   News

Jan 14, 2025 - To protect your systems from threat actors targeting your operational technology components, select products from manufacturers who are Secure-by-Design. Find out which security elements to prioritise.

Strategies to mitigate cybersecurity incidents: Mitigation details   Publication

Feb 1, 2017 - The Australian Signals Directorate (ASD) has developed prioritised mitigation strategies to help cybersecurity professionals in all organisations mitigate cybersecurity incidents caused by various cyberthreats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.

Cyber Security Research Report   Reports and statistics

Dec 15, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) commissioned exploratory research to better understand audience awareness of cyber security threats and practices.

Head of ACSC talks cyber security with Natarsha Belling in podcast special   News

Nov 29, 2021 - Ms Abigail Bradshaw, head of the Australian Cyber Security Centre (ACSC), recently sat down with journalist Natarsha Belling to discuss the common cyber threats affecting Australians today.

Australian Signals Directorate unveils new facility   News

Mar 23, 2022 - The Australian Signals Directorate (ASD) has unveiled a new world-class cyber and foreign intelligence facility, as the agency prepares to mark 75 years defending Australia from global threats.

Advice for Malicious Cyber Activity by Iran   News

Sep 15, 2022 - Australian organisations are urged to be alert to continued malicious cyber activity conducted by Advanced Persistent Threat (APT) actors, assessed to be affiliated with the Iranian Government’s Islamic Revolutionary Guard Corps (IRGC).

ASD's ACSC/NCSC collaboration to strengthen cyber security posture   News

Nov 4, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the UK’s National Cyber Security Centre (NCSC) are committed to improving our respective nation’s cyber security posture and protecting our networks from cyber threats.

TMUI remote code execution vulnerability - CVE-2020-5902   Alert

Jul 6, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) advises users of F5’s enterprise and data centre BIG-IP products to ensure their systems are promptly patched after the recent disclosure of new remote code execution vulnerability.

Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disk Encryption for Ransom Operations   Advisory

Sep 15, 2022 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) has joined with international cyber security agency partners to co-author an advisory on continued Iranian state-sponsored cyber threats. Organisations are encouraged to apply the recommended mitigations to protect themselves online.

Small business  

Jun 15, 2023 - Basic steps to protect your business and staff from cyberthreats. Our guide has information and resources to help you and your staff prepare for cyberattacks.

Engaging with artificial intelligence   Publication

Jan 24, 2024 - The purpose of this paper is to provide organisations with guidance on how to use artificial intelligence (AI) systems securely. The paper summarises some important threats related to AI systems and includes cybersecurity mitigation strategies to aid organisations in engaging with AI while managing risk. It provides mitigations to assist both organisations that maintain their own AI systems and organisations that use third-party AI systems.

2021-010: ASD's ACSC Ransomware Profile - Conti   Advisory

Mar 4, 2022 - Conti is a ransomware variant first observed in early 2020, used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Conti is offered as a Ransomware-as-a-Service (RaaS), enabling affiliates to utilise it as desired, provided that a percentage of the ransom payment is shared with the Conti operators as commission. This product provides information related to Conti’s background, threat activity, and mitigation advice.

2021-003: Ongoing campaign using Avaddon Ransomware   Advisory

May 8, 2021 - The Australian Cyber Security Centre (ACSC) is aware of an ongoing ransomware campaign utilising the Avaddon Ransomware malware. This campaign is actively targeting Australian organisations in a variety of sectors. This advisory provides details of Avaddon threat actors, dark web activity, targeted countries and sectors, the malware infection chain, and known Techniques, Tools, and Procedures (TTPs). If activity is identified relating to this advisory please report any findings to the ACSC.

Detecting socially engineered messages   Publication

Oct 6, 2021 - Socially engineered messages pose a significant threat to organisations. They can have a big impact, helping malicious actors access accounts, systems or sensitive information. Learn how to spot a socially engineered message, including through email, SMS, social media or messaging apps.

Small Business Cloud Security Guides: Technical Example - User Application Hardening   Publication

Dec 16, 2022 - User application hardening protects an organisation from a range of threats including malicious websites, advertisements running malicious scripts and exploitation of vulnerabilities in unsupported software. These attacks often take legitimate application functionality and use it for malicious purposes. User application hardening makes it harder for cybercriminals to exploit vulnerabilities or at-risk functionality in your organisation’s applications.

FortiOS & FortiProxy - Authentication bypass in Node.js websocket module vulnerability   Alert

Jan 15, 2025 - Fortinet has released information regarding an identified vulnerability in FortiOS version 7.0 and FortiProxy versions 7.0 and 7.2 instances. ASD’s ACSC recommends customers follow the advice contained in Fortinet’s notification.